ppm Definition
parts per million, a unit of measurement used to express the concentration of a substance in a solution.
Using ppm: Examples
Take a moment to familiarize yourself with how "ppm" can be used in various situations through the following examples!
Example
The maximum allowable level of lead in drinking water is 15 ppm.
Example
The air quality index measures the concentration of pollutants in the air in ppm.
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Summary: ppm in Brief
PPM [piː piː ɛm] stands for 'parts per million,' which is a unit of measurement used to express the concentration of a substance in a solution. It is commonly used in scientific and industrial contexts to measure the amount of a particular substance in a mixture or solution, such as the concentration of pollutants in the air or the amount of lead in drinking water.
